Musnad Ahmad 944:14

Muhammad ibn Ja‘far narrated to us, Shu‘bah narrated to us, Abu Ja‘far al-Madini—meaning al-Khatmi—narrated to me, he said: I heard ‘Umarah ibn ‘Uthman ibn Sahl ibn Hunayf narrating from Khuzaymah ibn Thabit: That he saw in his sleep that he was kissing the Prophet, may Allah bless him and grant him peace. So he came to the Prophet, may Allah bless him and grant him peace, and informed him of that. The Prophet, may Allah bless him and grant him peace, leaned toward him, and he kissed his forehead.